ObjFW  Diff

extern uintptr_t _Unwind_GetIP(struct _Unwind_Context *);
#else
extern int _Unwind_VRS_Get(struct _Unwind_Context *, int, uint32_t, int,
    void *);
#endif

#if !defined(HAVE_STRERROR_R) && defined(OF_HAVE_THREADS)
static of_mutex_t mutex;
static OFPlainMutex mutex;

OF_CONSTRUCTOR()
{
	OF_ENSURE(of_mutex_new(&mutex) == 0);
	OF_ENSURE(OFPlainMutexNew(&mutex) == 0);
}

OF_DESTRUCTOR()
{
	of_mutex_free(&mutex);
	OFPlainMutexFree(&mutex);
}
#endif

OFString *
of_strerror(int errNo)
{
	OFString *ret;

	if (strerror_r(errNo, buffer, 256) != 0)
		return @"Unknown error (strerror_r failed)";

	ret = [OFString stringWithCString: buffer
				 encoding: [OFLocale encoding]];
#else
# ifdef OF_HAVE_THREADS
	if (of_mutex_lock(&mutex) != 0)
	if (OFPlainMutexLock(&mutex) != 0)
		@throw [OFLockFailedException exception];

	@try {
# endif
		ret = [OFString
		    stringWithCString: strerror(errNo)
			     encoding: [OFLocale encoding]];
# ifdef OF_HAVE_THREADS
	} @finally {
		if (of_mutex_unlock(&mutex) != 0)
		if (OFPlainMutexUnlock(&mutex) != 0)
			@throw [OFUnlockFailedException exception];
	}
# endif
#endif

	return ret;
}